Join Andy Needham for an in-depth discussion in this video Using Scale to make my particles bigger or smaller, part of X-Particles 3 for Cinema 4D Essential Training.
- If you want to make your particles bigger or smaller, the Scale Modifier is what you'll want to use. It can be used to increase or decrease the scale, mass, or the radius of a particle. You'll find the Scale Modifier in the generate modifiers list cause its mainly used to control the scale of sprites and generated objects. In this example, we're going to use it to scale up some geometry. Initial scale set by the emitter is one with a bit of variation. And so looking at the Scale Modifier the parameter that we're changing is the particle scale.
It's going to be changing the value per frame using these settings with an upper scale limit of 10. We can bring this down to make the particles a bit smaller. You can also use non uniform values. If we want to make the change a bit slower, we just decrease these values. It'll take a lot longer to actually get to where they need to be.
So that's a quick look at setting up to alter the particle scale. Let's look at some particle radius examples. We can also use the Scale Modifier to control the particle radius. So we can effectively fade in and out our particles. Here's an example of fading in. You set the parameter to change to be particle radius. And we're changing the value per frame over this small amount.
With a lower limit of zero and an upper limit of 10. For this to actually work, the emitter radius has to be set to zero. Let's look at fading out. In this setup, the emitter already has a large radius of 10 with some variation. When I enable that, and enable the Scale Modifier we can see that we're using a negative value to get the particles to scale down.
With the same emitter setup, let's look at a different operation mode. If I enable the Scale Modifier, we're using the Use Spline mode; in this graph represents the particle lifetime. So the beginning they're going to be very small, and then they're going to gradually scale up over their life. In this example, I've made the Spline bit more erratic so we're getting this really jittery, poppy, kind of effect.
And this might be useful when you're creating some kind of glittery, sparkly, kind of effect. So bear that in mind. We can use the Scale Modifier to make our particles bigger or smaller. And using the Spline settings we have a lot of control over this process.
- Working with the Emitter tabs
- Adjusting particles with modifiers
- Creating visible particles
- Using sprites
- Colliding, freezing, and lighting particles
- Caching in X-Particles
- Applying constraints
- Adjusting materials settings
- Sculpting particles
- Saving and loading presets